1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-22.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-22.js
new file mode 100644
index 0000000000..69b038aec8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-22.js
@@ -0,0 +1,37 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.lastindexof
+description: >
+    Array.prototype.lastIndexOf throws TypeError exception when
+    'length' is an object with toString and valueOf methods that don�t
+    return primitive values
+---*/
+
+var toStringAccessed = false;
+var valueOfAccessed = false;
+
+var obj = {
+  1: true,
+  length: {
+    toString: function() {
+      toStringAccessed = true;
+      return {};
+    },
+
+    valueOf: function() {
+      valueOfAccessed = true;
+      return {};
+    }
+  }
+};
+
+assert.throws(TypeError, function() {
+  Array.prototype.lastIndexOf.call(obj, true);
+});
+
+assert(toStringAccessed, 'toStringAccessed');
+assert(valueOfAccessed, 'valueOfAccessed');
+
+reportCompare(0, 0);